Stock and die.



A. 0. EKORENRUD.

STOCK AND DIE. APPLIUATIOH IILED 11111.2,1911.

1,019,234. P FB i Mar- 5,1912.

)4 TTORNEY COLUMBIA WRAP" CUJWASHINGTONI D- C.

AUGUST 0. EKORENRUD, OF SEATTLE, WASHINGTON.

STOCK AND DIE.

Specification of Letters Patent.

PatentedMar. 5, 1 912.

Application'filed March 2, 1911. SerialNo. 611,865.

To all whom it may concern:

Be it known that I, AUGUST 0-. EKOREN- RUD, a citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Stocks and Dies, of which the following is a specification.

This invention relates to stock-and-die devices such as are utilized by artisans for threading bolts, pipes, etc.

The object of my invention is the improvement in devices of such character, whereby the operating of the same is facilitated and the work therewith rendered less laborious.

The invention, generally stated, consists in the novel employment of a divided die, the parts thereof being adjustably secured in the opposing elements of a hinged stockframe and constituting, with the die parts, openable jaws.

The invention further novel construction and combination of the various details as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a front elevation of thread cutting appliances illustrated in operative condition. Fig. 2 is a rear elevation of the same shown open. Fig. 3 is a longitudinal section taken substantially through 3-3 of Fig. 1. According to my invention, the die stock is constructed with a frame comprising two members 5 and 5 with an opening therein to accommodate the complementary dies 6 and guide parts 7 Said stock is formed of two parts which are hingedly connected at one side by a pivotal pin 8. Diametrically opposite fromv such hinge, the stock parts are respectively provided with lugs 9 and 10. The lug 9 has pivotally connected there to by a pin 11 a pair of links 12, 12 which are, in turn, connected by a pin 13 with a clamping lever 14:. The lug 10 is provided with a concave face 10 against which the arm 14 of said lever is engaged when latching the stock members together, as represented in Fig. 1. The extremity of said arm is formed with a curvature eccentric to the axis of pin 13 in order to cooperate with the lug 10 to produce a clamping effect when the other arm 14: of the lever is drawn by the operators finger toward the stock frame. Disposed in planes medially of said frame members, the latter are provided with sockconsists in the ets 15' for handlebars 16. The aforesaid guide parts are each provided on their arouate surfaces with a circumferential ridge 17 (Fig. 3) which respectively fit into grooves 17 in the inner periphery of members 5 and 5. Disposed upon opposite sides of sockets 15 are screws 18 arranged parallel thereto and which freely extend. through said members to engage in threaded holes 19 provided in the dies. The dies and respective guide parts are detachably coupled by screws 20 and normally moved together, as best shown in Fig. 3.

21 represent screws positioned in the plane of the produced axes of the respective stock handles and engage in threaded holes 22 provided in the stock frame. These screws are each located at the joint or interstice between a die and the frame member therefor. The heads of screws 21 are of conoidal shape and fit against a correspondingly shaped recess 23 in the periphery of a die, and in consequence of which, the screwing in of these screws will tend to make the dies approach each other when the stock isin the closed condition in which it is illustrated in Fig. 1. By retracting the screws the tapering heads thereof recede from aforesaid conical recesses to allow the die parts to be moved asunder through the agency of the screws 21.

The operation is as follows: In adj usting the die parts, to lessen the opening therebetween, the screws 18 are first retracted for short distances, and then the screws 21 are regulated to cause the conical heads thereof to push against the sloping surfaces 23 of the die parts to push the same toward each other. When the die parts are to be moved asunder the screws 21 are first retracted to a limited extent and the die parts are then moved to a selected amount through the instrumentality of the screws 18. By then screwing in screws 21, the die parts are firmly held in place.

Among the advantages of the invention, is the provision of quick acting means for securing the hinged members of the stock frame so as to readily release them for opening the frame for removal from the work and thereby obviating the necessity of backing-off from a previously cut thread which would be liable to strip the thread or dull the cutting threads of the die s elements. Another advantage is m the rapid manner in which the device can be closed. Also in the manner of detachably securing divided dies to a stock afioi'difi'g" convenient means for sharpening the dies or their replacement by others of the same or different cutting sizes or pitches.

What I claim, is

'-A stock and die comprising a two-part die stock, a two-part die Within said stock and provided With openings having a portion of the Walls thereof inclined, a two-part guide, means for securing the guide to the die, screws engaging in said stock and having conical heads co-acting With the inclined Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Walls of the openings of the die for ad- 'j'li'stahiy moving the die and guide parts inwardly, and means carriedby the stock and extending at right angles With respect to said screws and positioned upon opposite sides thereof for securing the die and guide parts in adjusted positions and moving the same outwardly.

AUGUST 0. EKORENRUD.

Witnesses:

KORT J OHNSON, H. BARNES.

Washington, D G. 

